Annual change in CHI estimated using a linear regression model from 2003 to 2013 for each raster cell.
Categories of annual change in CHI based on linear model estimates of slope from CHI values from 2003 to 2013. Areas are identified as decreasing CHI (slope < 0), and increasing CHI when: >0, >0.1, and >0.15.
Impact trends for each of the 14 impacts. Impacts are separated by major groups: climate change, shipping, land-based, and fishing (commercial and artisanal). All maps use the same color scale, to describe the relative contribution of each impact to the cumulative impacts.
Sea surface temperature was, by far, the largest driver of global (but not coastal) cumulative impacts and annual change in cumulative impacts. Left figures exclude SST and right figures include SST.
Annual change in impacts for 3nm offshore area for 220 countries. Sea surface temperature and sea level rise are not included to better examine the influence of the remaining impacts cumulative impacts. SST and SLR were the largest drivers of global change, but other impacts were also important.